Taking Wall Rose

What would happen if you lived in the same dimension as titans? No not like greek myth, more like Attack on Titan. Well, Sibuna Thoth is one such person who does. Though she's a bit different then most of the humans in the world, she lives beyond Wall Maria. A young girl with inhuman-like strength, and a crazy secret, with a knowledge of the world no one else can see, she's seen things and gone to places farther than the reaches of mankind. What happens when she is dragged across the wall in chains? Will she help defend mankind from the Titans? Or will she run back across the great wall?
( I do NOT own Attack on Titan, all rights go to whom ever created it. I only own Sibuna and whatever changes she can make to the story.)